Audi A4: Antenna Systems

 Child safety lock

The child safety lock prevents the rear doors from being opened from the inside and the rear power windows from being operated. Fig. 37 Drivers door: controls Applies to: vehicles with manual child safety locks Fig. 38 Rear door: manual child safety lock Vehicles with button Applies to: vehicles

 Cooling system

Coolant The engine cooling system is filled with a mixture of purified water and coolant additive at the factory. This coolant must not be not changed. The coolant level is monitored using the indicator light. However, you should occasionally check the coolant level. Messages The following messag